Acer Aspire 2930 Aspire 2930 / 2930Z / 2430 Service Guide - Page 147

USB Failure (Rightside) If the rightside USB port fails, perform the following actions one at a time to correct the problem. Do not replace a non-defective FRUs: Modem Function Failure If the internal Modem fails, perform the following actions one at a time to correct the problem. Do not replace a non-defective FRUs: Chapter 4 137